1. a College of Business Administration, Hunan University of Technology and Business, Changsha, Hunan 410205, China
2. b Key Laboratory of Hunan Province for Statistical Learning and Intelligent Computation, Hunan University of Technology and Business, Changsha, Hunan 410205, China
3. c Department of Computer Science and Information Engineering, Asia University, Taichung 41354, Chinese Taipei
4. d Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Chinese Taipei
5. e Facultad de ingeniería, Universidad Distrital Francisco José de Caldas, Bogotá, Colombia
6. f Fundación Universitaria internacional de la Rioja, Bogotá, Colombia